<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>

</body>
</html>
<script>
    var list = [1,2,3,4,5,6,7,8,0,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z];
    list.each(function(){
        //先把一个位的数字，首先先判断下,
        list.each(funcion(){
            //两位的继续判断
            list.each(funcion(){
                ///
            })
        })
    })
</script>